I understand that one limiting factor in non-human animal populations is that increased pathogen populations decrease animal populations from killing them, which decreases the density of the animals, ...

Background : Certain plants have been genetically engineered to have sense-antisense gene of a parasitic nematode. The dsRNA produced by the plant then inactivates the mRNA produced in the nematode, ...

Haemolytic disease of the newborn can result from Rhesus incompatibility in utero. In this disease a Rh-ve mother becomes exposed to the antigens of a Rh+ve foetus by fetomaternal haemorrhage causing ...

I read that Huntington's is a disorder caused by dynamic mutations in the DNA, which means that a triplet sequence of DNA changes from generation to generation. Say we have the sequence ATGATGATGATG. ...

What can cause an erythematous, fluctuant, nontender mass in the middle of the neck?
Full Case Study: (Its the last of 6 cases and I just can't figure this one out, because of all the possibilities, ...

I recently learned from an answer at health.SE* that influenza B tends to occur later in the season compared to influenza A. According to the graph in that answer, during this year’s flu season the ...

Mouth ulcers are red/white rings with a crater. They are sore and last for 7-10 days.
What I want to know is what they are 'made of' - i.e., what is the ring filled with, and why is the centre crater ...

If a person has developed leukopenia as a side-effect of long-term use of anti-convulsant medications and his/her immune system appears normal otherwise (does not get infections any more often than a ...

I am very interested in the case of the man named Edward Mordake who lived in the 19th century. In particular, he had two faces. If you have not heard of this man, please, search this up as there are ...

I'm an undergraduate computer engineering student, and I have a project about bioinformatics. In this manner, I need to find prediction( or association I'm not sure the correct terminology) confidence ...

In the case of a gene therapy trial where viral vectors are used to deliver genes into mammalian cells, including humans, should biosafety and ethical protocols include isolation of the patient as a ...

I have read in some texts that diabetes mellitus type 1 is caused by degeneration of beta cells due to our body's own immune reaction.Is it true? Can you explain further how are such types of immune ...

I am looking for a mapping, list, ontology or graph that shows the connection between a diseases and its (currently known) causes and/or risk factors.
For example a well known risk factor for acute ...

Complete molar pregnancy is one where an ovum devoid of nucleus is fertilized by a sperm after which the haploid set of chromosomes double to form a diploid set.
As far as my understanding extends if ...

Is there a term or any evidence of phage DNA integrating into chromosomes/ DNA but never being triggered?
For example, could a virus that affected Neanderthals still infect human cells today but is ...

This is my understanding of the dimensions of ulcer. Please answer if it's correct. Any more information is very welcome.
Edge represents the lateral wall of ulcer.
Margin represents the borders in ...

As far as I am aware, the saccades of the eye are central to visual perception. If the eye is held still, the human stops seeing, even if light is reaching the retina and the visual pathway is intact. ...

An article on I Fucking Love Science (linked to below) got me thinking, are there any viruses that have been so successful that they have spread to all land animals similar to Toxoplasmosis which has ...

I have learned that Cyanosis presents with blue skin and nails. What is the reason for the blue coloration of the skin and nails? Why wont the skin and nails turn another color in the visible spectrum ...

I am definitely pro vaccination, and the question is a bit morbid because people would die, but assuming that we didn't treat or vaccinate people for fatal diseases such as Ebola or the black death, ...

Is there a test method of proving a person being color-blind, without letting the test subject know, that he/she is being tested?
E.g. showing the person cards with colored dots like depicted here is ...

I found this dude hanging out in my sink, but he didn't fly away when I put a dish in the sink. Turned out it was dead. The front part looks exactly like a housefly. But, I've never seen the back end ...

So i'm looking into the ebola crisis and it seems the death toll is really getting crazy. I understand that it's a cytomegalovirus and that it basically overwhelms the immune system due to it's size ...